Question

What caused many people in the urban middle-class to oppose Diaz's dictatorship and support of political revolution?

Answer 1

The correct answer would be B.

The urban middle class wanted Mexico to be a democratic government and that is why they opposed the totalitarian rule of Porfirio Diaz who ruled Mexico at the time for 35 years. This led to Mexican Revolution which lasted from 1910 to 1920  which transformed Mexico, both its government and its culture.